Formation of RACK- and grid-type metallosupramolecular architectures and generation of molecular motion by reversible uncoiling of helical ligand strands.

Date publication

juin 2006

Auteurs

Membres identifiés du Cancéropôle Est :
Pr LEHN Jean-Marie

Tous les auteurs :
Stadler AM, Kyritsakas N, Graff R, Lehn JM

Lien Pubmed

https://www.ncbi.nlm.nih.gov/pubmed/16721729

Résumé

The interaction of appropriate metal ions (Pb(II), Zn(II)) with helical ligand strands, obtained by hydrazone polycondensation, generates polymetallic supramolecular architectures of rack and grid types, by uncoiling of the ligand. The interconversion between the helical free ligand and the linearly extended ligand in the complexes produces reversible ion-induced, nanomechanical molecular motions of large amplitude. It has been integrated in an acid-base neutralisation fuelled process, which links the extension/contraction of the ligand strands to alternating changes in pH.

Référence

Chemistry. 2006 Jun 2;12(17):4503-22.